제출 #349501

#제출 시각아이디문제언어결과실행 시간메모리
349501David_MCombo (IOI18_combo)C++14
100 / 100
53 ms552 KiB
#include "combo.h"
#include <bits/stdc++.h>
#define p press
#define r return
using namespace std;
string ans,a="BXY";
string guess_sequence(int N){
p("XY")?ans='Y'-p("X"):ans='B'-p("A");
if(N==1)r ans;
if(ans!="A")a[(ans[0]-'B')%21]='A';
for(int i=1;i<N-1;i++)ans+=a[p(ans+a[1]+ans+a[2]+a[0]+ans+a[2]+a[1]+ans+a[2]+a[2])-i];
if(p(ans+a[0])==N)r ans+a[0];
if(p(ans+a[1])==N)r ans+a[1];
r ans+a[2];
}
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